13138661339 has 2 divisors, whose sum is σ = 13138661340. Its totient is φ = 13138661338.

The previous prime is 13138661303. The next prime is 13138661387. The reversal of 13138661339 is 93316683131.

13138661339 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13138661339 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13138661339.

It is not a weakly prime, because it can be changed into another prime (13138661539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6569330669 + 6569330670.

It is an arithmetic number, because the mean of its divisors is an integer number (6569330670).

Almost surely, 2^13138661339 is an apocalyptic number.

13138661339 is a deficient number, since it is larger than the sum of its proper divisors (1).

13138661339 is an equidigital number, since it uses as much as digits as its factorization.

13138661339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 44.

The spelling of 13138661339 in words is "thirteen billion, one hundred thirty-eight million, six hundred sixty-one thousand, three hundred thirty-nine".